CN104612870B - Fuel jet device - Google Patents
Fuel jet device Download PDFInfo
- Publication number
- CN104612870B CN104612870B CN201410582282.0A CN201410582282A CN104612870B CN 104612870 B CN104612870 B CN 104612870B CN 201410582282 A CN201410582282 A CN 201410582282A CN 104612870 B CN104612870 B CN 104612870B
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- Prior art keywords
- fuel
- mentioned
- cylinder
- misfiring
- gaseous
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0602—Control of components of the fuel supply system
- F02D19/0613—Switch-over from one fuel to another
- F02D19/0615—Switch-over from one fuel to another being initiated by automatic means, e.g. based on engine or vehicle operating conditions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
- F02D19/0642—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
- F02D19/0647—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0686—Injectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/32—Controlling fuel injection of the low pressure type
- F02D41/34—Controlling fuel injection of the low pressure type with means for controlling injection timing or duration
- F02D41/345—Controlling injection timing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/1015—Engines misfires
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
A fuel jet device is provided. The fuel jet device can seek low manufacturing cost and simplified structure fully compared with a present fuel jet device. The fuel jet device comprises a fuel supply pipe (24a), a fuel supply pipe (24b) and a jet control section (60). The fuel supply pipe (24a) forms fuel supply channels (25a) communicated with a first cylinder and a second cylinder formed in an engine (2) at a branch of the downstream side of a gas fuel injector (22a) and are used for supplying CNG for the two cylinders equally. The fuel supply pipe (24b) forms fuel supply channels (25b) communicated with a third cylinder and a fourth cylinder formed in the engine (2) at a branch of the downstream side of a gas fuel injector (22b) and are used for supplying CNG for the two cylinders equally. The jet control section (60) controls the gas fuel injector (22a) and the gas fuel injector (22b) to start injection of CNG the special second and third cylinders are in an outstroke.
Description
Technical field
The present invention relates to fuel injection device, specifically, is related at least use gaseous fuel as driving fuel
The fuel injection device of internal combustion engine.
Background technology
It is as the vehicle that at least uses gaseous fuel as the internal combustion engine of driving fuel is equipped with, such as known to be equipped with
Using the gasoline as liquid fuel and the compressed natural gas as gaseous fuel (Compressed Natural Gas, below, letter
Referred to as " CNG ") etc. pluralities of fuel is used as the vehicle of the dual fuel engine of driving fuel.
In general, it is equipped with the vehicle of dual fuel engine to possess for spraying vapour each cylinder formed in internal combustion engine
The ejector of oil and for spraying the ejector of CNG, therefore there is a problem of that manufacturing cost increases and structure complicates.
As the scheme for solving this problem, have pointed out in JP 2004-124891 publication for being fired using liquid
Multiple cylinders are supplied the side of liquid fuel by the dual fuel engine of material and gaseous fuel with the injection apparatus of 1 liquid fuel
Case.
Prior art literature
Patent documentation
Patent documentation 1：JP 2004-124891 publication
The content of the invention
Problems to be solved by the invention
However, the scheme proposed in JP 2004-124891 publication is although it is contemplated that the injection apparatus of liquid fuel, but
Not in view of the injection apparatus of expensive gaseous fuel compared with the injection apparatus of liquid fuel, therefore exist inabundant
Seek the problem of the reduction of manufacturing cost and the simplification of structure in ground.
Therefore, the present invention is completed to solve this problem, be its object is to, there is provided with existing fuel injection
Device compares the fuel injection device that can fully seek the reduction of manufacturing cost and the simplification of structure.
For solution to problem
1st aspect of the present invention is provided with the fuel injection of the internal combustion engine of the gaseous-fuel injector of gas injection fuel
Device, it is characterised in that possess：Fuel feed pipe, it is formed and internal combustion in the downstream branch positioned at gaseous-fuel injector
The fuel supply passageway of the 2 cylinders connection in the cylinder formed in machine, for 2 cylinders equably supply gas combustion
Material；And jet controling part, its control gaseous-fuel injector so that including intake stroke, compression stroke, expansion stroke with
And among a series of 4 strokes of exhaust stroke, the specific cylinder in 2 cylinders starts gaseous fuel when being in exhaust stroke
Injection.
Used as the 2nd aspect of the present invention, Ke Yishi, fuel supply passageway comes specific gas with specific cylinder and ignition order
The cylinder connection of the first cis-position after cylinder.
Used as the 3rd aspect of the present invention, Ke Yishi, fuel supply passageway comes specific gas with specific cylinder and ignition order
The cylinder connection of the second cis-position after cylinder.
Used as the 4th aspect of the present invention, Ke Yishi is also equipped with：Liquid fuel injector, its injecting LPG in liquefied condition；Rotation
Angle transducer, the anglec of rotation of the output shaft of its detection internal combustion engine；Misfire test section, it is detected according to rotation angle sensor
The anglec of rotation, detects misfiring for internal combustion engine；And enumerator of misfiring, it detects the number of times misfired to test section of misfiring
Counted, jet controling part exceedes predetermined threshold value as bar with the count value obtained by being counted by enumerator of misfiring
Part, forbids the injection of gaseous fuel carried out by gaseous-fuel injector, controls liquid fuel injector, sprays liquid fuel
Device injecting LPG in liquefied condition.
Used as the 5th aspect of the present invention, Ke Yishi is also equipped with：Valve, the inhaled air volume of its adjustment internal combustion engine；The anglec of rotation
Sensor, the anglec of rotation of the output shaft of its detection internal combustion engine；Misfire test section, its rotation detected according to rotation angle sensor
Corner, detects misfiring for internal combustion engine；Misfire enumerator, it detects that the number of times misfired is counted to test section of misfiring
Number；And valve control unit, it exceedes predetermined threshold value as bar with the count value obtained by being counted by enumerator of misfiring
Part, controls valve so that inhaled air volume is less than predetermined inhaled air volume.
Invention effect
So, above-mentioned 1st aspect can by 1 gaseous-fuel injector to 2 cylinder injection gaseous fuels, because
This, compared with the existing fuel injection device of gaseous-fuel injector is provided with to each cylinder, can fully seek system
Cause reduction originally and the simplification of structure.
Above-mentioned 2nd aspect can make that 1 gaseous-fuel injector sprays specific cylinder and ignition order comes specific gas
The gaseous fuel of the amount of 2 cylinders of the cylinder of the first cis-position after cylinder.
Above-mentioned 3rd aspect can make that 1 gaseous-fuel injector sprays specific cylinder and ignition order comes specific gas
The gaseous fuel of the amount of 2 cylinders of the cylinder of the second cis-position after cylinder.
The 4th above-mentioned aspect exceedes threshold value as condition with the count value of enumerator of misfiring, and forbids being sprayed by gaseous fuel
The injection of the gaseous fuel that device is carried out, controls liquid fuel injector, makes liquid fuel injector injecting LPG in liquefied condition, therefore energy
Internal combustion engine is enough suppressed to misfire.
The 5th above-mentioned aspect exceedes threshold value as condition with the count value of enumerator of misfiring, and suppresses the suction of internal combustion engine empty
Tolerance, therefore, it is possible to suppress internal combustion engine to misfire.
Description of the drawings
Fig. 1 is the main portion of the vehicle for illustrating the fuel injection device involved by the 1st embodiment for being equipped with the present invention
The pie graph for dividing.
Fig. 2 is the schematic diagram of a series of 4 strokes of each cylinder for illustrating the electromotor shown in Fig. 1.
Fig. 3 is the schematic diagram for illustrating gaseous fuel to the injection timing of each cylinder of the electromotor shown in Fig. 1.
Fig. 4 is the main portion of the vehicle for illustrating the fuel injection device involved by the 2nd embodiment for being equipped with the present invention
The pie graph for dividing.
Fig. 5 is the schematic diagram for illustrating gaseous fuel to the injection timing of each cylinder of the electromotor shown in Fig. 4.
Fig. 6 is the stream of the detection action of misfiring of the fuel injection device involved by the 2nd embodiment for illustrating the present invention
Cheng Tu.
Fig. 7 is the detection action of misfiring for illustrating the fuel injection device involved by the 2nd embodiment of the present invention
Sequential chart.
Fig. 8 is the main portion of the vehicle for illustrating the fuel injection device involved by the 3rd embodiment for being equipped with the present invention
The pie graph for dividing.
Fig. 9 is the stream of the detection action of misfiring of the fuel injection device involved by the 3rd embodiment for illustrating the present invention
Cheng Tu.
Figure 10 is the detection action of misfiring for illustrating the fuel injection device involved by the 3rd embodiment of the present invention
Sequential chart.
Description of reference numerals
1 vehicle 2 electromotor (internal combustion engine) 3 ECU (jet controling part, test section of misfiring, enumerator of misfiring, valve control
Portion processed) spray of liquid fuel injector 22a, 22b gaseous fuel of bent axle (output shaft) 13 rotation angle sensor of 10 cylinder 12 21
Emitter 24a, 24b, the air throttle (valve) 40 of 50a, 50b fuel feed pipe 25a, 25b, 51a, 51b fuel supply passageway 27,60,
70 jet controling parts 61 test section 62 of misfiring is misfired the valve control unit of enumerator 71
Specific embodiment
Hereinafter, the embodiment that present invention will be described in detail with reference to the accompanying.
(the 1st embodiment)
As shown in figure 1, the vehicle 1 of the fuel injection device being equipped with involved by the 1st embodiment of the invention is comprising interior
The electromotor 2 of combustion engine type and ECU (Electronic Control Unit：Electronic control unit) 3.
The cylinder 10 of multiple cylindrical shapes is formed with electromotor 2.Piston 11 is accommodated in the way of it can move back and forth
Each cylinder 10.As shown in Fig. 2 electromotor 2 is made up of four-stroke engine, piston 11 carry out in cylinder 10 2 times it is reciprocal
Period carries out including a series of 4 strokes of intake stroke, compression stroke, expansion stroke and exhaust stroke and in compression
Lighted a fire during stroke and expansion stroke.
In the present embodiment, electromotor 2 be set to the motor mechanism by 4 cylinder in upright arrangement into, but in the present invention, electromotor
2 can be by 6 cylinder engine in upright arrangement, the cylinder engine of V-type 6, the cylinder engine of V-type 12 or horizontally-opposed 6 cylinder engine
Deng various types motor mechanism into.
In addition, illustrating to the identiflication number that 4 cylinders 10 for configuring in upright arrangement mark respectively #1 to #4, say in following
In bright, also each cylinder 10 is referred to as into " cylinder #1 ", " cylinder #2 ", " cylinder #3 " or " cylinder #4 ".
The bent axle 12 as its output shaft is provided with electromotor 2.Be accommodated in the piston 11 of each cylinder 10 by by its
Reciprocating motion is transformed to the connecting rod of rotary motion and is attached to bent axle 12.
Therefore, electromotor 2 moves back and forth piston 11 by making fuel burn in cylinder 10 with the mixed gas of air
And bent axle 12 is rotated, thus produce the driving force for driving vehicle 1.
The rotation angle sensor 13 of the anglec of rotation of detection bent axle 12 is provided with bent axle 12.Specifically the anglec of rotation is sensed
Device 13 has the signal rotor arranged in the way of integratedly rotating with bent axle 12.In the peripheral part of the signal rotor, except making
On the basis of hypodontia beyond, for example form with teeth by per 30 degree at regular intervals.
In addition, rotation angle sensor 13 has the sensor for passing through for detecting these teeth.The sensor is generated and turned with signal
The corresponding pulse signal of the presence or absence of tooth of son.That is, rotation angle sensor 13 generates pulse signal corresponding with the rotation of bent axle 12.
In addition, being provided with induction mnifold 20 in electromotor 2.The inside of induction mnifold 20 and the suction for sucking extraneous gas
Gas communication.That is, the connection air suction way of induction mnifold 20 and each cylinder 10.
4 liquid fuel injectors 21 towards the injecting LPG in liquefied condition of each cylinder 10 and court are provided with induction mnifold 20
To 2 gaseous-fuel injectors 22a, 22b of the gas injection fuel of each cylinder 10.
Liquid fuel injector 21 has the solenoid coil and needle-valve controlled by ECU3.Liquid fuel such as gasoline is advising
Fixed pressure feed is to each liquid fuel injector 21.When causing solenoid coil to be powered by ECU3, liquid fuel injection
Device 21 opens needle-valve, towards the injecting LPG in liquefied condition of cylinder 10.
Additionally, the liquid fuel of present embodiment is set to gasoline, but it is also possible to replace gasoline, and be set to light oil etc. is hydrocarbon
The alcohol fuel that the ethanol such as compounds fuel or ethanol is mixed with gasoline.
The jet of gaseous-fuel injector 22a is connected to fuel feed pipe 24a.In addition, gaseous-fuel injector 22b
Jet is connected to fuel feed pipe 24b.
Each gaseous-fuel injector 22a, 22b have the solenoid coil and needle-valve controlled by ECU3.
In the present embodiment, as the CNG of gaseous fuel with the pressure feed that specifies to each gaseous-fuel injector
22a、22b.When causing solenoid coil to be powered by ECU3, gaseous-fuel injector 22a, 22b open needle-valve, towards fuel
Respectively gas injection fuel is CNG in supply pipe 24a, 24b.
Specifically, fuel feed pipe 24a is formed and 4 gas in the downstream branch positioned at gaseous-fuel injector 22a
The fuel supply passageway 25a of 2 cylinders 10 connection in cylinder 10, for equably supplying CNG to 2 cylinders 10.In this reality
In applying mode, fuel supply passageway 25a is with specific cylinder #2 and ignition order comes the cylinder #1 companies of the first cis-position after cylinder #2
It is logical.
That is, fuel supply passageway 25a is straight with the distance of the jet of gaseous-fuel injector 22a to cylinder #1 and section
Footpath is respectively equal to the mode of the diameter of the distance and section of the jet to cylinder #2 of gaseous-fuel injector 22a and is formed.
Fuel feed pipe 24b is formed and 2 in 4 cylinders 10 in the downstream branch positioned at gaseous-fuel injector 22b
The fuel supply passageway 25b of the connection of individual cylinder 10, for equably supplying CNG to 2 cylinders 10.In the present embodiment,
Fuel supply passageway 25b is with specific cylinder #3 and ignition order comes the cylinder #4 of the first cis-position after cylinder #3.
That is, fuel supply passageway 25b is straight with the distance of the jet of gaseous-fuel injector 22b to cylinder #3 and section
Footpath is respectively equal to the mode of the diameter of the distance and section of the jet to cylinder #4 of gaseous-fuel injector 22b and is formed.
It is provided with induction mnifold 20：The pressure regulating box 26 of specified volume, it suppresses the pulsation and interference of air-breathing；And section
Air valve 27, it is used to adjust the inhaled air volume of electromotor 2.
Air throttle 27 includes the valve body of thin round plate shape, possesses axle in the central authorities of valve body.Solar term are provided with air throttle 27
Valve actuator 28, the solar term valve actuator 28 rotates axle according to the control of ECU3 so that valve body rotation, adjusts air throttle 27
Whole inhaled air volume.In addition, being provided with the air throttle jaw opening sensor 29 of the aperture of detection air throttle 27 in air throttle 27.
In addition, being provided with the exhaust manifold 30 for being discharged to waste gas outside car in electromotor 2.Exhaust manifold 30 and row
Gas communication.That is, the connection exhaust channel of exhaust manifold 30 and each cylinder 10.
Catalytic unit 31 is provided with exhaust manifold 30.Catalytic unit 31 typically is provided with three-way catalyst, and the ternary is urged
Agent can efficiently remove such as unburned hydrocarbons (HC), carbon monoxide (CO) and the nitrogen oxidation that waste gas is included
The harmful substance of thing (NOx).As the three-way catalyst, the three-way catalyst with following functions is preferably used：Even NOx
The high waste gas of containing ratio, also can efficiently remove NOx from the waste gas.
ECU3 includes computer unit, and the computer unit possesses CPU (Central Processing Unit：Centre
Reason unit), RAM (Random Access Memory：Random access memory), ROM (Read Only Memory：It is read-only to deposit
Reservoir), flash memory, input port and output port.
Be stored with various control constants, various mappings etc. in the ROM of ECU3, and is stored with for making the computer list
Program of the unit as ECU3 functions.That is, in ECU3, program is read into RAM by CPU from ROM, performs the journey after reading in
Sequence, so as to the computer unit is used as ECU3 functions.
In the present embodiment, the input port of ECU3 is connected with and is sensed comprising rotation angle sensor 13 and solar term valve opening
Device 29 is in interior various sensors.On the other hand, the output port of ECU3 is connected with the spray of liquid fuel injector 21, gaseous fuel
The various control objects such as emitter 22a, 22b and solar term valve actuator 28.ECU3 is according to the information obtained from various sensors, control
Make various control objects.
In the present embodiment, ECU3 constitutes jet controling part 40, according to the operation of the switch for being arranged at instrument board etc. and
The operating condition of vehicle 1, the liquid fuel for choosing the gasoline driven engine 2 by spraying from liquid fuel injector 21 drives
Pattern and pass through the CNG that sprays from gaseous-fuel injector 22a, 22b and drive appointing in the gaseous fuel-driven pattern of electromotor 2
One drive pattern.
In liquid fuel within drive pattern, ECU3 controls each liquid fuel injector 21 so that in each cylinder 10 in row
Start the injection of gasoline during gas stroke.
In figure 3, as shown in hatch patterns, in gaseous fuel-driven pattern, ECU3 control gaseous-fuel injectors
22a, 22b so that the specific cylinder in 2 cylinders 10 that fuel supply passageway 25a, 25b are respectively communicated with is in exhaust stroke
When start the injection of CNG.
That is, ECU3 controls gaseous-fuel injector 22a so that 2 cylinders #1, #2 that fuel supply passageway 25a is connected
In specific cylinder #2 start the injection of CNG when being in exhaust stroke.
Here, almost equal timing when with liquid fuel drive pattern sprays CNG to cylinder #2.The opposing party
Face, with than in liquid fuel drive pattern when it is early to cylinder #1 injection CNG.
However, CNG is gas, thus will not be attached to the inner face of induction mnifold 20 and by induction mnifold 20 with cylinder #1
The valve of opening and closing.Therefore, also will not be not enough to the CNG of cylinder #1 supplies.
In addition, ECU3 control gaseous-fuel injector 22a so that compared with the situation by each cylinder 10 injection CNG, spray
Penetrate the CNG of the amount of CNG, i.e. 2 times of the amount of 2 cylinders.
Similarly, in gaseous fuel-driven pattern, ECU3 control gaseous-fuel injector 22b so that in fuel supply
Specific cylinder #3 in 2 cylinders #3, #4 that path 25b is connected starts the injection of CNG when being in exhaust stroke.
Here, almost equal timing when with liquid fuel drive pattern sprays CNG to cylinder #3.The opposing party
Face, than in liquid fuel drive pattern when it is early to cylinder #4 injection CNG.
However, CNG is gas, thus will not be attached to the inner face of induction mnifold 20 and by induction mnifold 20 with cylinder #4
The valve of opening and closing.Therefore, also will not be not enough to the CNG of cylinder #4 supplies.
In addition, ECU3 control gaseous-fuel injector 22b so that compared with the situation by each cylinder 10 injection CNG, spray
Penetrate the CNG of the amount of CNG, i.e. 2 times of the amount of 2 cylinders.
As described above, in the present embodiment, 2 cylinders of gaseous-fuel injector 22a injection cylinder #1, #2 can be made
The CNG of 10 amount, makes the CNG of the amount of 2 cylinders 10 of gaseous-fuel injector 22b injection cylinder #3, #4, therefore, and to every
Individual cylinder is provided with the existing fuel injection device of gaseous-fuel injector and compares, and can fully seek the drop of manufacturing cost
The simplification of low and structure.
In addition it is also possible to replace present embodiment, and arranged with fuel supply passageway 25a and specific cylinder #1 and ignition order
After cylinder #1 the first cis-position cylinder #3 connection mode constitute fuel feed pipe 25a, with fuel supply passageway 25b with it is specific
The mode that the cylinder #2 that cylinder #4 comes the first cis-position after cylinder #4 with ignition order is connected constitutes fuel feed pipe 25b.At this
In the case of, ECU3 is configured to make gaseous-fuel injector 22a spray CNG when specific cylinder #1 is in exhaust stroke, specific
Cylinder #4 makes gaseous-fuel injector 22b spray CNG when being in exhaust stroke.
(the 2nd embodiment)
In the present embodiment, the difference with the 1st embodiment of the present invention is illustrated.In addition, to present embodiment
The element mark identical reference same with the 1st embodiment of the present invention in element, and illustrate different
Point.
As shown in figure 4, the jet of the gaseous-fuel injector 22a of present embodiment is connected to fuel feed pipe 50a.Separately
Outward, the jet of gaseous-fuel injector 22b is connected to fuel feed pipe 50b.
Fuel feed pipe 50a is formed and 2 in 4 cylinders 10 in the downstream branch positioned at gaseous-fuel injector 22a
The fuel supply passageway 51a of the connection of individual cylinder 10, for equably supplying CNG to 2 cylinders 10.In the present embodiment,
Fuel supply passageway 51a comes the cylinder #4 of the second cis-position after cylinder #1 and connects with specific cylinder #1 with ignition order.
That is, fuel supply passageway 51a is straight with the distance of the jet of gaseous-fuel injector 22a to cylinder #1 and section
Footpath is respectively equal to the mode of the diameter of the distance and section of the jet to cylinder #4 of gaseous-fuel injector 22a and is formed.
Fuel feed pipe 50b is formed and 2 in 4 cylinders 10 in the downstream branch positioned at gaseous-fuel injector 22b
The fuel supply passageway 51b of the connection of individual cylinder 10, for equably supplying CNG to 2 cylinders 10.In the present embodiment,
Fuel supply passageway 51b comes the cylinder #3 of the second cis-position after cylinder #2 and connects with specific cylinder #2 with ignition order.
That is, fuel supply passageway 51b is straight with the distance of the jet of gaseous-fuel injector 22b to cylinder #2 and section
Footpath is respectively equal to the mode of the diameter of the distance and section of the jet to cylinder #3 of gaseous-fuel injector 22b and is formed.
ECU3 shown in Fig. 4 is compared with the 1st embodiment of the present invention, and the program for being stored in ROM is different.Specifically,
ECU3 shown in Fig. 4 constitutes jet controling part 60, the operation and the operating shape of vehicle 1 according to the switch for being arranged at instrument board etc.
State, choose the liquid fuel drive pattern of gasoline driven engine 2 by spraying from liquid fuel injector 21 and by from
The CNG of gaseous-fuel injector 22a, 22b injection drives the arbitrary drive pattern in the gaseous fuel-driven pattern of electromotor 2.
In liquid fuel within drive pattern, the ECU3 shown in Fig. 4 controls each liquid fuel injector 21 so that in each cylinder
10 injections for starting gasoline when being in exhaust stroke.
In Figure 5, the ECU3 control gaseous fuels as shown in hatch patterns, in gaseous fuel-driven pattern, shown in Fig. 4
Ejector 22a, 22b so that the specific cylinder in 2 cylinders 10 that fuel supply passageway 51a, 51b are respectively communicated with is in row
Start the injection of CNG during gas stroke.
That is, the ECU3 control gaseous-fuel injector 22a shown in Fig. 4 so that 2 connected in fuel supply passageway 51a
Individual cylinder #1, #4 start the injection of CNG when being in exhaust stroke.
Here, almost equal timing when with liquid fuel drive pattern sprays CNG to cylinder #1, #4.
In addition, the ECU3 control gaseous-fuel injector 22a shown in Fig. 4 so that during with by each 10 spray fuel of cylinder
Amount compare, spray 8/5 times amount CNG.That is, the ECU3 control gaseous-fuel injector 22a shown in Fig. 4 so as to 1 gas
Cylinder 10 sprays the CNG of 4/5 times of amount.
Here, when cylinder #1 is in exhaust stroke, cylinder #4 is in compression stroke, therefore, it is air-breathing punching in cylinder #1
Cheng Shi, the part for being ejected into the CNG of cylinder #4 is inhaled into cylinder #1.Now, 1/5 times of degree is remained in cylinder #4
CNG, therefore, the CNG for being inhaled into cylinder #1 is added with the CNG of the amount of 4/5 times sprayed when in exhaust stroke and is 1
Times.Similarly, the amount for being inhaled into the CNG of cylinder #4 is also 1 times.
In addition, the ECU3 control gaseous-fuel injector 22b in gaseous fuel-driven pattern, shown in Fig. 4 so that in combustion
2 cylinders #2, #3 that material supply passageway 51a is connected start the injection of CNG when being in exhaust stroke.
Here, almost equal timing when with liquid fuel drive pattern sprays CNG to cylinder #2, #3.
In addition, the ECU3 control gaseous-fuel injector 22b shown in Fig. 4 so that with by each spray fuel of cylinder 10
Situation is compared, and sprays the CNG of 8/5 times of amount.That is, the ECU3 control gaseous-fuel injector 22b shown in Fig. 4 so as to 1 gas
Cylinder 10 sprays the CNG of 4/5 times of amount.
In the present embodiment, compared with the 1st embodiment of the present invention, each cylinder 10 is in exhaust stroke and compression stroke
In injected CNG, in intake stroke suck exhaust stroke in spray 4/5 times amount CNG and compression stroke in spray
The CNG of 1/5 times of amount.Therefore, when the engine speed of electromotor 2 is uprised, there is following possibility：Each cylinder 10 cannot be fully
The CNG sprayed in suction compression stroke, so as to electromotor 2 is misfired.
Therefore, as shown in figure 4, ECU3 is constituted：Misfire test section 61, its rotation detected according to rotation angle sensor 13
Corner, detects misfiring for electromotor 2；And enumerator 62 of misfiring, it detects what is misfired to test section 61 of misfiring
Number of times is counted.
On the basis of the position corresponding to hypodontia of the pulse signal that test section 61 of misfiring is generated by rotation angle sensor 13,
The pulse of pulse signals is counted, even if electromotor 2 is in operating condition, is also detected as not sending out if counting if presence postpones
Fire.
In addition, the ECU3 shown in Fig. 4 is exceeded in advance really with count value Cm obtained by being counted by enumerator 62 of misfiring
Fixed threshold value TH (4) is for example, condition, forbids the injection of gaseous fuel carried out by gaseous-fuel injector 22a, 22b, control
Liquid fuel injector 21, makes the injecting LPG in liquefied condition of liquid fuel injector 21.
That is, the ECU3 shown in Fig. 4 is exceeded with count value Cm obtained by being counted by enumerator 62 of misfiring and predefines
Threshold value TH be condition, by drive pattern from gaseous fuel-driven pattern switching be liquid fuel drive pattern.
The fuel injection involved by the embodiments of the present invention shown in Fig. 4 configured as described above is illustrated with reference to Fig. 6
Device carries out detection action of misfiring.Additionally, the detection action of misfiring of following explanation is for example by being arranged at instrument board etc.
Switch perform when have selected gaseous fuel-driven pattern.
First, ECU3 selects gaseous fuel-driven pattern as drive pattern (step S1).Then, ECU3 is according to the anglec of rotation
The anglec of rotation that sensor 13 is detected, judges whether to detect misfiring (step S2) for electromotor 2.
Here, in the case where being judged as not detecting the misfiring of electromotor 2, ECU3 makes detection action return of misfiring
Step S1.On the other hand, in the case where being judged as detecting the misfiring of electromotor 2, ECU3 is by enumerator 62 of misfiring
Count value Cm adds 1 (step S3).
Then, whether ECU3 judge to misfire count values Cm of enumerator 62 exceed threshold value TH (step S4).Here, sentencing
In the case that count value Cm broken as enumerator 62 of misfiring is not less than threshold value TH, ECU3 makes detection action return to step of misfiring
S1.On the other hand, in the case where count value Cm of the enumerator 62 that is judged as misfiring exceedes threshold value TH, ECU3 is by drive pattern
It is liquid fuel drive pattern (step S5) from gaseous fuel-driven pattern switching.
Then, ECU3 judges whether test section 61 of misfiring at the appointed time detects misfire (step S6).Here,
In the case where being judged as detecting and misfiring, ECU3 makes detection action return to step S5 of misfiring.
On the other hand, in the case where being judged as not detecting and misfiring, ECU3 is by the count value of enumerator 62 of misfiring
Cm resets to 0 (step S7), makes detection action return to step S1 of misfiring.
For example, as shown in fig. 7, at each moment of moment t1 to moment t5, detecting in test section 61 of misfiring and misfiring
In the case of, exceed predetermined threshold value TH in count values Cm of the moment t5 obtained by enumerator 62 of misfiring is counted
(=4), therefore, drive pattern is liquid fuel drive pattern from gaseous fuel-driven pattern switching by jet controling part 60.
As described above, in the present embodiment, 2 cylinders of gaseous-fuel injector 22a injection cylinder #1, #4 can be made
The CNG of 10 amount, makes the CNG of the amount of 2 cylinders 10 of gaseous-fuel injector 22b injection cylinder #2, #3, therefore, and to every
Individual cylinder is provided with the existing fuel injection device of gaseous-fuel injector and compares, and can fully seek the drop of manufacturing cost
The simplification of low and structure.
In addition, in the present embodiment, threshold value TH is exceeded as condition with count value Cm of enumerator 62 of misfiring, forbid by
The injection of the gaseous fuel that gaseous-fuel injector 22a, 22b are carried out, controls liquid fuel injector, makes liquid fuel injector
Injecting LPG in liquefied condition, therefore, it is possible to suppress electromotor 2 to misfire.
(the 3rd embodiment)
In the present embodiment, the difference with the 2nd embodiment of the present invention is illustrated.In addition, to present embodiment
The element mark identical reference same with the 2nd embodiment of the present invention in element, and illustrate different
Point.
ECU3 is compared with the 2nd embodiment of the present invention, and the program for being stored in ROM is different.Specifically, the present invention's
ECU3 compositions jet controling part 60 in 2nd embodiment, and in the present embodiment, as shown in figure 8, ECU3 constitutes injection control
Portion 70.
Jet controling part 70 eliminates following functions compared with jet controling part 60：In terms of being carried out by enumerator 62 of misfiring
It is condition that count value Cm obtained by number exceedes predetermined threshold value TH, forbids what is carried out by gaseous-fuel injector 22a, 22b
The injection of gaseous fuel, controls liquid fuel injector 21, makes the injecting LPG in liquefied condition of liquid fuel injector 21.
Replace, the ECU3 shown in Fig. 8 also constitutes valve control unit 71, the valve control unit 71 is with by enumerator 62 of misfiring
It is condition that count value Cm obtained by being counted exceedes predetermined threshold value TH, and by solar term valve actuator 28 air throttle is controlled
27 so that the inhaled air volume of electromotor 2 is less than predetermined inhaled air volume.
The fuel injection involved by the embodiments of the present invention shown in Fig. 8 configured as described above is illustrated with reference to Fig. 9
Detection action that what device was carried out misfire.Additionally, the detection action of misfiring of following explanation is for example by being arranged at instrument board
Deng switch have selected gaseous fuel-driven pattern when perform.
First, ECU3 selects gaseous fuel-driven pattern as drive pattern (step S11).Then, ECU3 is according to rotation
The anglec of rotation that angle transducer 13 is detected, judges whether to detect misfiring (step S12) for electromotor 2.
Here, in the case where being judged as not detecting the misfiring of electromotor 2, ECU3 makes detection action return of misfiring
Step S11.On the other hand, in the case where being judged as detecting the misfiring of electromotor 2, ECU3 is by enumerator 62 of misfiring
Count value Cm adds 1 (step S13).
Then, whether ECU3 judge to misfire count values Cm of enumerator 62 exceed threshold value TH (step S14).Here,
Be judged as misfiring enumerator 62 count value Cm not less than threshold value TH in the case of, the ECU3 detection actions that make to misfire return step
Rapid S11.
On the other hand, in the case where count value Cm of the enumerator 62 that is judged as misfiring exceedes threshold value TH, ECU3 passes through
Solar term valve actuator 28 controls air throttle 27 so that the inhaled air volume of electromotor 2 is less than predetermined inhaled air volume THq
(step S15).
Then, ECU3 judges whether test section 61 of misfiring at the appointed time detects misfire (step S16).
This, in the case where being judged as detecting and misfiring, ECU3 makes detection action return to step S15 of misfiring.
On the other hand, in the case where being judged as not detecting and misfiring, ECU3 is by the count value of enumerator 62 of misfiring
Cm resets to 0 (step S17), makes detection action return to step S11 of misfiring.
For example, as shown in Figure 10, at each moment of moment t1 to moment t5, detect in test section 61 of misfiring and misfire
In the case of, exceed predetermined threshold value TH in count values Cm of the moment t5 obtained by enumerator 62 of misfiring is counted
(=4), therefore, valve control unit 71 controls air throttle 27 by solar term valve actuator 28 so that the inhaled air volume of electromotor 2 is low
In predetermined inhaled air volume THq.That is, in moment t5, air throttle 27 is changed into restriction state from unrestricted state.
As described above, in the present embodiment, in the same manner as the 2nd embodiment of the present invention, spray can gaseous fuel
The CNG of the amount of 2 cylinders 10 of emitter 22a injection cylinder #1, #4, makes the 2 of gaseous-fuel injector 22b injection cylinder #2, #3
The CNG of the amount of individual cylinder 10, therefore, with the existing fuel injection device phase that gaseous-fuel injector is provided with to each cylinder
Than can fully seek the reduction of manufacturing cost and the simplification of structure.
In addition, in the present embodiment, threshold value TH is exceeded as condition with count value Cm of enumerator 62 of misfiring, suppresses to send out
The inhaled air volume of motivation 2, therefore, it is possible to suppress electromotor 2 to misfire.
Embodiments of the present invention are disclosed above, but those skilled in the art can add without departing from the scope of the present invention
To change, this point is clear.Claim described in claims is intended to encompass all this amendments and equivalent.
Claims (5)
1. a kind of fuel indection device in internal combustion engine,
It is provided with the gaseous-fuel injector of gas injection fuel, it is characterised in that possess：
Fuel feed pipe, it forms and is formed with above-mentioned internal combustion engine in the downstream branch positioned at above-mentioned gas fuel injector
Cylinder in 2 cylinders connection fuel supply passageway, for equably supplying above-mentioned gas fuel to 2 cylinders；With
And
Jet controling part, its control above-mentioned gas fuel injector so that including intake stroke, compression stroke, expansion stroke
And among a series of 4 strokes of exhaust stroke, the specific cylinder in above-mentioned 2 cylinders is opened when being in above-mentioned exhaust stroke
The injection of beginning above-mentioned gas fuel.
2. fuel injection device according to claim 1, it is characterised in that
Above-mentioned fuel supply passageway comes the cylinder of the first cis-position after above-mentioned specific cylinder with above-mentioned specific cylinder and ignition order
Connection.
3. fuel injection device according to claim 1, it is characterised in that
Above-mentioned fuel supply passageway comes the cylinder of the second cis-position after above-mentioned specific cylinder with above-mentioned specific cylinder and ignition order
Connection.
4. the fuel injection device according to any one of claim 1 to claim 3, it is characterised in that be also equipped with：
Liquid fuel injector, its injecting LPG in liquefied condition；
Rotation angle sensor, the anglec of rotation of the output shaft of its above-mentioned internal combustion engine of detection；
Misfire test section, its anglec of rotation detected according to above-mentioned rotation angle sensor detects misfiring for above-mentioned internal combustion engine；
And
Misfire enumerator, it detects that the number of times misfired is counted to above-mentioned test section of misfiring,
Above-mentioned jet controling part exceedes predetermined threshold value with the count value obtained by being counted by above-mentioned enumerator of misfiring
For condition, forbid the injection of gaseous fuel carried out by above-mentioned gas fuel injector, control aforesaid liquid fuel injector, make
Aforesaid liquid fuel injector sprays aforesaid liquid fuel.
5. the fuel injection device according to any one of claim 1 to claim 3, it is characterised in that be also equipped with：
Valve, the inhaled air volume of its above-mentioned internal combustion engine of adjustment；
Rotation angle sensor, the anglec of rotation of the output shaft of its above-mentioned internal combustion engine of detection；
Misfire test section, its anglec of rotation detected according to above-mentioned rotation angle sensor detects misfiring for above-mentioned internal combustion engine；
Misfire enumerator, it detects that the number of times misfired is counted to above-mentioned test section of misfiring；And
Valve control unit, it exceedes predetermined threshold value as bar with the count value obtained by being counted by above-mentioned enumerator of misfiring
Part, controls above-mentioned valve so that above-mentioned inhaled air volume is less than predetermined inhaled air volume.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013228345A JP2015086839A (en) | 2013-11-01 | 2013-11-01 | Fuel injection device |
| JP2013-228345 | 2013-11-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104612870A CN104612870A (en) | 2015-05-13 |
| CN104612870B true CN104612870B (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410582282.0A Expired - Fee Related CN104612870B (en) | 2013-11-01 | 2014-10-27 | Fuel jet device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2015086839A (en) |
| CN (1) | CN104612870B (en) |
| DE (1) | DE102014221817B4 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016112541A1 (en) * | 2016-07-08 | 2018-01-11 | Man Diesel & Turbo Se | Method and control unit for functional testing of a gas metering valve |
| JP6484298B2 (en) * | 2017-07-18 | 2019-03-13 | 株式会社ケーヒン | Internal combustion engine misfire detection device |
| JP6484297B2 (en) * | 2017-07-18 | 2019-03-13 | 株式会社ケーヒン | Internal combustion engine misfire detection device |
| JP6484299B2 (en) * | 2017-07-18 | 2019-03-13 | 株式会社ケーヒン | Internal combustion engine misfire detection device |
| JP6484306B2 (en) * | 2017-08-29 | 2019-03-13 | 株式会社ケーヒン | Internal combustion engine misfire detection device |
| WO2020044549A1 (en) * | 2018-08-31 | 2020-03-05 | 本田技研工業株式会社 | Control system for internal combustion engine and control method for internal combustion engine |
| KR102330222B1 (en) * | 2019-07-05 | 2021-11-23 | 만 에너지 솔루션즈, 필리알 아프 만 에너지 솔루션즈 에스이, 티스크란드 | Large two-stroke uniflow scavenged engine with a gaseous fuel mode |
| CN111636969B (en) * | 2020-06-05 | 2021-04-16 | 吉林大学 | Oil and gas supply control method and system for two-stroke dual-fuel engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1497150A (en) * | 2002-10-07 | 2004-05-19 | 株式会社日立制作所 | Fuel injection control device of double-fuel internal-combustion engine |
| CN101755118A (en) * | 2007-07-24 | 2010-06-23 | 罗伯特.博世有限公司 | Internal combustion engine having a plurality of cylinders |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5477830A (en) | 1993-12-30 | 1995-12-26 | Servojet Products International | Electronic fuel injection system for internal combustion engines having a common intake port for each pair of cylinders |
| JP2003097314A (en) | 2001-09-20 | 2003-04-03 | Tokyo Gas Co Ltd | Lean burn gas engine and its control method |
| JP2005054676A (en) * | 2003-08-04 | 2005-03-03 | Mazda Motor Corp | Spark ignition type engine |
| US7296560B2 (en) | 2005-01-20 | 2007-11-20 | Kubota Corporation | Engine of spark-ignition type |
| DE102006052985B4 (en) | 2006-11-10 | 2015-08-06 | Volkswagen Ag | Method for operating an internal combustion engine with bivalent fuel supply |
| GB2453581A (en) | 2007-10-10 | 2009-04-15 | David Hampshire | Equalising air fuel ratios between cylinders without detecting camshaft position in an internal combustion engine with shared inlet ports |
| JP4650511B2 (en) * | 2008-03-27 | 2011-03-16 | 株式会社デンソー | Fuel supply system |
| DE102008044056A1 (en) | 2008-11-25 | 2010-05-27 | Robert Bosch Gmbh | Fuel injector |
| WO2011161980A1 (en) | 2010-06-22 | 2011-12-29 | 本田技研工業株式会社 | Control apparatus for internal combustion engine |
| US9494090B2 (en) | 2013-03-07 | 2016-11-15 | GM Global Technology Operations LLC | System and method for controlling an engine in a bi-fuel vehicle to prevent damage to a catalyst due to engine misfire |
-
2013
- 2013-11-01 JP JP2013228345A patent/JP2015086839A/en active Pending
-
2014
- 2014-10-27 CN CN201410582282.0A patent/CN104612870B/en not_active Expired - Fee Related
- 2014-10-27 DE DE102014221817.9A patent/DE102014221817B4/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1497150A (en) * | 2002-10-07 | 2004-05-19 | 株式会社日立制作所 | Fuel injection control device of double-fuel internal-combustion engine |
| CN101755118A (en) * | 2007-07-24 | 2010-06-23 | 罗伯特.博世有限公司 | Internal combustion engine having a plurality of cylinders |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014221817B4 (en) | 2024-03-21 |
| CN104612870A (en) | 2015-05-13 |
| DE102014221817A1 (en) | 2015-05-07 |
| JP2015086839A (en) | 2015-05-07 |
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